Sash lock



R. GRISTY.

SASH K. APPLICATION m PR. 1!. 1922.

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FUBE/IT 67/5 71 Mimi-S553 I R. GRISTY.

SASH LOCK.

APPLICATION FILED APR. 11. 1922.

Patented Nov. 28, 1922.

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u rpm w M 5 fl E awn 5553 Patented Nov. 28, 1922. p UNITED STATES PATENTOFFICE.

ROBERT GBISTY, 0F DETROIT. MICHIGAN.

SASH LOCK.

Application flied April 17, 1922. Serial No. 553,772.

To all 'wJwmit may concern: plurality of transversely extending notchesB i known that I, Bonner Gnis'rr, a 61th in one of its side edges whileits other side zen of the United States, residing at Detroit, edge isprovided. with a pair of end aperin the county of Wayne and State ofMichitured ears 6 and an intermediate apertured certain new and usefulgan, have invented of wh ch the Improvements in Sash Locks, following isa specification.

The present invention relates to improve ments in sash locks and has forits principal object to'improve the construction of devices of thisnature by providing a simple, inexpensive, and efficient structure onepossessing strength and durability and adapted to be dow so as to belooking a sash in its at various adjustments.

ear 7 extending in an opposite direction to the end ears 6. These ears 6and 7 extend at right angles from the keeper bar 4. The ears 6 and 7 areadapted to be fixed to the lower sash 2 by screws or other similar.devices and is situated as to extend vertically therewith and so thatits-upper end terminates flush with the upper end of the sash. Thelocking arm 9 is provided with anangularly extending apertured ear 10having a notch 11 therein and this ear 10 is pivoted to Closed iti anthe window frame adjacent the top of the Another object of the inventionis to prolower sash 2 so that the same may be pivoted vide means of thisnature whereby the upper and engaged with the notches 5 of the keepersash may be locked in varying adjusted pobar 4 and hold the lower sash 2in raised adother. just/ed positions. When the sash 2 is closed the arm9 is adapted to engage the top of the keeper bar 4: as shown toadvantage in Figure 1. When the sash 2 is in a raised position, anyinstrument may be used for engagemeut with the notch 11 of the lockingarm 9 so that the arm may be pivoted out of engagement with one of thenotches 5.

sitions in relation to each Another object of the invent on is to secure greater safety and convenience an to provide a structure which maybe readily locked or unlocked.

With these and other objects in view, the

invention consists in the construction and novel combination of partshereinafter fully described, illustrated in the accompanying A keeperbar 13 i.s attached to the upper drawing, and hereinafter claimed; itbeing sash ad acent the window pane and 1S forme understood that variouschanges in the form, proportion, size and minor details of construction,within the scope of the invention as claimed. may be resorted to w thoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

In the drawing 1- Figure 1 is a perspective of a sash lock constructedin accordance with my invention and shown applied to a portion of awindow.

Figure 2 is an elevation thereof,

Figure 3 is a similar view showing the sashes in adjusted positions,

Figure 4 is an edge elevation thereof show ing the sashes in adjustedpositions,

Figure 5 is a perspective of a pivoted hook used in coniunction withthis invention,

Figure 6 is a perspective of a pivoted locking member, and

Figure 7 is a perspective of the keeper bar adapted to be attached tothe lower sash. I

Referring to the drawing in detail it will be seen that the window frame1 1S 0 conventional construction having slidably mounted therein thelower sash 9 and upper sash 3. The keeper bar 4: is provided with a intwo pivoted sections. The main section 14 is rovided with a plurality ofnotches 15 an with apertured ears 16 which are secured to the sash 3 asshown to advantage in Figure 1. The auxiliary section 17 of the keeperbar is pivoted to the main section 14 at 18 and is also provided with aplurality of notches 19 similar to the notches 15 and this section 17 isretained in raised position by the pivoted hook 20 mounted at 21 on thesash 3. A locking arm 23 is pivoted at 24 on the top of the lower sash 2and is adapted to engage the notches 15 and 19 of the keeper bar 13whereby the sashes Z and 8 may be held in ad'usted position whendesired.

When the auxiliary or upper section 17 of it is allowed my inventionWhat notches, means for holding the sections in extended positions,means for attaching one of the sections to one of the window sashes, anda locking arm on the other sash for engagement with the notches.

2. In combination. a window frame, a pair in the WlndOW tended position,and a locking arm pivoted on the other sash for engagement with thenotches thereof.

the ot er sash for engagement with the notches thereof and means forlockin said frame. In testimony whereof I aflix my signature in presenceof two Witnesses.

ROBERT GRISTY.

Witnesses:

WILLIAM J. CHURCH, Lomsn CHURCH.

